Leather-finishing machine



(No Model.) 2 sneet -She t E. NORTHROP. LEATHER FINISHING MAGHINE.

No. 466,182. Patented Dec. 29, 1891f W/TNESSES. INVENTOR w g E.QJYZrilrafi ATTORNEYS ms mums PETERS co, mom-mm, msmwwn. a. c.

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' E. G. NORTHROP.

LEATHER FINISHING MACHINE. No. 466,182. Patented Dec. 29, 1891.

. the lower ends of rods M, which are supported UNITED STATES PATENTOFFICE.

ELIIIU O. NORTHROP, OF BODINES, ASSIGNOR OF ONE-HALF TO JOHN A. INNIS,OF CANTON, PENNSYLVANIA.

LEATHER-FINISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 466,182, dated December29, 1891.

Application filed May 19, 1891.

To all whom it may concern:

Be it known that I, ELIHU C. Non'rnnor, of Bodines, Lycoming county,State of Pennsylvania, have invented a new and useful Improvement inLeather-Finishing Machines, of which the following is a specification.

My invention is an improved leather rolling or finishing machine; and itconsists in certain novel constructions and combinations of parts, aswill be described, seeking, among other improvements, to provide a novelconstruction of the rolling -Wheel and of the means for supporting andoperating the same, as will be hereinafter described.

In the drawings, Figure 1 is a side and Fig. 2 an edge elevation of mymachine. Fig. 3 is a detail view of the rolling-wheel, and Fig. 4 is adetail view of the pinion-wheel.

The main frame of the machine may be suitably formed to support theseveral operating parts, and comprises, in the construction shown, theuprights A A and B B, the sill O, and top beam D. The rail-beams E arebraced by hanger-rods F from the top beam D, and are preferably providedwith metal rails or plates 6 to form bearings for the rollers of thewheel-shaft presently de scribed.

In order to give strength and rigidity to the main frame, it is firmlytrussed by trussrods G, extending from the truss-block H at the centerof the top beam to the truss-blocks I alongside the uprights, andsecured by nuts, so that the truss-rods may be tightened from time totime, as required.

The bed J has its frame supported to slide vertically in the main frame,and is provided with upright or leg portions K, which extend nearly tothe lower end of the main frame. These leg portionsK are engaged by theouter ends of the levers L, which are fulcrumed to from the top beam andsecured by nuts, so that the pivots of the levers may be adjusted asdesired. At their inner ends the levers L are connected to the treadleN, by depressing which the bed-frame will be forcibly elevated, thisoperation pressing the bed firmly against the rolling-wheel presentlydescribed.

The rolling-wheel O is arranged above the bed and is of a specialconstruction, as shown the wheel.

(No model.)

most clearly in Fig. 3. On one portion of its circumference the wheel isformed or provided with a contact-surface P, which is preferably ofbrass and may be a brass plate riveted, bolted, or otherwise secured tothe surface of Diametrically opposite the contact-surface P therolling-wheel is provided with a toothed segment Q, which may be formedwith or secured on the surface of the wheel, as desired. The axle orshaft R of the wheel extends beyond its ends and receives the arms-ortines s of the forked pitman S. The said shaft also supports thefreely-turning rollers T, which run upon the rail-beams before describedand properly support the wheel during operation when it is not pressingagainst the leather on the bed. The pitman S connects with a lever T,which in turn is piv-' oted to the frame and may be worked to move therolling-wheel back and forth over the bed. Manifestly this lever T maybe worked by hand or by connecting it by a pitman t with the crank of amotor or by other suitable operating mechanism, as desired. Apinionwheel U, having gear or cog teeth a, is arranged above'therolling-wheel and adapted to mesh the teeth Q and also to mesh the teethof a toothed plate or rack V, secured to the framing, preferably to theunder side of the top beam, as shown. This pinion U braces therolling-wheel firmly against upward pressure and serves also to insurethe rolling of the said wheel as it is moved over the bed. In additionto its gear-teeth the pinion U is preferably provided on opposite sidesthereof with smooth surfaces to bear upon similar surfaces U on therolling-wheel and surfaces U on the toothed plate V, such smoothbearing-surfaces operating to relieve the gear-teeth of both wheel andpinion of the upward pressure exerted against the rolling-wheel. Thispinion maybe held between the wheel and plateVsimply by the meshing ofits teeth with those of said wheel and plate and operate in such usetoinsure the turning of the rolling-wheel as the latter is moved overthe bed; but it is preferred to provide mechanism for bodily moving suchpinion, so that it may be caused to revolve the rollingwheel at a speedfaster than that at which the said wheel may be turned by the bearing ofits surface against the leather on the bed. The eifeet of such operationis to produce a slipping or sliding of the wheel on the leather,resulting in a burnishing and finishing thereof, as will be readilyunderstood. In so moving the pinion it is preferred to connect it by theextended ends of its shaft with the forked end of a pitman W, theopposite end of which is connected with the lever'l", so that as suchlever is operated to move the rolling-wheel forward and back it willalso move the pinion, andsuch pinion by meshing with the teeth of plateV will be turned and will operate to turn the rolling-wheel faster thansuch wheel will turn by the contact of its surface with the leather,this resulting from the difference in diameter of the pinion and Wheel.Manifestly the connection of the pitman \V with the lever T may beadjusted to vary the extent of slipping or sliding of the rolling-wheel,as may be desired.

It is manifest that I do not desire to be lin1-' ited in the broadfeatures of my invention to the particular mechanism shown for movingthe wheel and pinion, as they may be moved in various ways withoutdeparting from some of the broad principles of my invention.l\lanifestly,instead of providing two contactsurfaces, one on each sideof the gear-teeth, said gear-teeth may be arranged in pairs,with singlecontact-surfaces between them, without departing from my invention.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, 1s

1. The improved leather-rollin g machine herein described, comprisingthe bed, the rolling-wheel having a toothed segment, the rack arrangedon the opposite side of said wheel from the bed, and the pinion meshingthe said segment and rack, whereby the roller may be positively turnedin the direction it would. be turned by its bearing upon the bed, allsubstantially as and for the purposes set forth.

2. In a leather-rolling machine, substantially as described, thecombination of the bed, the rack, the rolling-wheel having a toothedsegment, mechanism for moving said wheel bodily, the pinion meshing thesaid rack and segment, and operating devices by which to bodily movesuch pinion, substantially as set forth.

3. The combination, in a leather-rolling machine, of the bed, therolling-wheel having a toothed segment, the rack V, the pinion meshingsaid segment and rack, the lever T, and pitmen connecting said lever Twith the rolling-wheel and pinion, substantially as set forth.

4. In a leather-rolling machine, the combination of the bed, therolling-wheel having a toothed segment and a bearing-surface adjacent tothe same, the rack and a bearing-surface adjacent thereto, and thepinion interposed between the rack and rolling-wheel and having teeth tomesh those of the segment and rack, and also having a bearing-surface tocontact those of therolli ng-wheel and rack, whereby the pinion and rackmay receive the pressure of the rolling-wheel and the teeth of saidwheel, pinion, and rack will be relieved of such pressure, substantiallyas and for the purposes set forth.

5. I11 a leather-rolling machine, the combination of the bed, therolling-wheel provided with a toothed segment and having its shaftprovided with rollers, guide-rails on which said rollers move, mechanismby which to move said wheel bodily, the rack, and the pinion interposedbetween and meshing with the rack and the segment of the rolling-wheel,all substantially as and for the purposes set forth.

(3. In a leather-rolling machine, the combination of the rack V, therail-beams, the bed, the rolling-wheel having a toothed segment andprovided with a shaft, the rollers on said shaft arranged to move on therail-beams, the pinion arranged between and meshing with the rack V andthe toothed segment of the wheel, the lever T, and the pitmen connectingthe said lever T with the pinion and the rolling-wheel, allsubstantailly as and for the purposes set forth.

7. In a leather-rolling machine, the combination of the bed, the rollerarranged to bear against said bed and provided between its ends with atoothed segment, the rack ar ranged on the opposite side of said wheelfrom the segment, and the pinion interposed between. and meshing thesaid rack and segment, all substantially as and for the purposes setforth.

ELIIIU C. NORTIIROP.

\Vitnesses: P. B. TURIPIN, So'noN KEMoN.

